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121353-01H
13
INSTALLATION
Continued
Area of Various Standard Round Flues
Diameter
Area
5"
20 sq. inches
6"
29 sq. inches
7"
39 sq. inches
8"
51 sq. inches
Chimney Height
Minimum permanent
Flue Opening
6' to 15'
39 sq. inches
15' to 30'
29 sq. inches
Damper Clamp
Damper
Clamp
Damper
Damper
Masonry Fireplace
Manufactured
Fireplace
Figure 10 - Attaching Damper Clamp
INSTALLING HEATER BASE
ASSEMBLY
CAUTION: Do not remove the
data plates attached to the heater
base assembly. The data plates
contain important warranty and
safety information.
WARNING: You must secure
this heater to fireplace floor. If
not, heater will move when you
adjust controls. Moving heater
may cause a gas leak.
WARNING: If installing in a
sunken fireplace, special care
is needed. You must raise the
fireplace floor to allow access to
heater control panel. This will in
-
sure adequate air flow and guard
against sooting and controls be
-
ing damaged. Raise fireplace floor
with noncombustible material.
Make sure material is secure.
CAUTION: Do not pick up
heater base assembly by the
burner. This could damage
heater. Only handle base as
-
sembly by grates.
IMPORTANT:
Make sure the heater burner
is level. If heater is not level, heater will not
work properly.
Installation Items Needed
• hardware package (provided with heater)
• approved flexible gas hose (provided)
(if allowed by local codes)
• sealant (resistant to propane/LP gas, not
provided)
• electric drill with 3/16" drill bit (metal or
masonry as applicable)
• flathead screwdriver
1. Apply pipe joint sealant lightly to male
threads of the fitting to be threaded into
gas control. Connect approved flexible gas
hose (provided for VYM models only) to
gas control fitting in heater (see Figure 11).
IMPORTANT:
Hold gas fitting with wrench
when connecting flexible gas hose.
2. Locate 2 masonry screws in hardware
package.
See chart below for minimum permanent flue
opening you must provide. Attach damper
clamp so the minimum permanent flue open
-
ing will be maintained at all times.
Fitting
Flexible Gas Hose
(Provided for VYM
models only) (if
allowed by local codes)
Figure 11 - Attaching Flexible Gas Hose
to Heater
